Difference between revisions of "Cirsium eatonii"

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{{Plant2000
 
{{Plant2000
|array architecture=spiciform,racemiform
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|array architecture=spiciform
|array external texture=woolly-tomentose
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|array arrangement or density=tight
|array orientation=nodding
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|array orientation=erect
|chromosome count=34
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|corolla coloration=pink,pale,deep
|corolla coloration=yellow,pink,purple
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|face external texture=glabrous,or,arachnoid-tomentose,tomentose
|corolla orientation=southern
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|head architecture=sessile,sessile
|face external texture=arachnoid-tomentose,villous,tomentose,glabrate
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|head architecture=sessile,short-pedunculate
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|involucre external texture=tomentose
 
|involucre external texture=tomentose
|phyllary position=outer
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|spine count=few
 
|spine external texture=stiff
 
|spine external texture=stiff
 
|spine size=slender
 
|spine size=slender
|stem orientation=erect,ascending
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|stem orientation=erect
 
|trichome architecture=septate,septate
 
|trichome architecture=septate,septate
|trichome prominence=obscured
 
 
|flowering time=summer,jun,jul,aug,sep,fall
 
|flowering time=summer,jun,jul,aug,sep,fall
 
}}
 
}}
Variety viperinum is apparently endemic to upper elevations of the Snake Range of White Pine County, Nevada. Heads of var. viperinum are similar in size to those of var. clokeyi. These taxa can be distinguished readily by the features in the key. Ranges of the two varieties are separated by about 340 km. Hybridization with Cirsium inamoenum is suspected based upon apparently intermediate specimens.
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Variety hesperium is distributed in the San Juan Mountains and Spanish Peaks area of southern Colorado. It differs from var. eriocephalum in its stiffly erect arrays. Plants from the Spanish Peaks area approach var. eriocephalum.

Revision as of 19:14, 28 November 2013


Variety hesperium is distributed in the San Juan Mountains and Spanish Peaks area of southern Colorado. It differs from var. eriocephalum in its stiffly erect arrays. Plants from the Spanish Peaks area approach var. eriocephalum.